MAIN BODY ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the main body ECU removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedure Effect/Inoperative when not Performed Link
Disconnect cable from negative battery terminal Memorize steering angle neutral point Parking assist monitor system

Click here

LKA/LDA system

Click here

Pre-crash safety system
Adaptive high beam system
Reset power trunk lid Power trunk lid system

Click here

Main body ECU (multiplex network body ECU) Code registration (Immobiliser system)

  • Wireless door lock control system

  • Entry and start system

  • Engine start

  • Steering lock system

 See the Service Bulletin for the registration method.

PROCEDURE


  1. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY (for LHD)

    Click here

  2. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (for RHD)

    Click here

  3. REMOVE COWL SIDE JUNCTION BLOCK LH (for LHD)


    1. B002DX5

      Disconnect the 7 connectors on the front side.

    2. B002DED

      Remove the bolt and nut.

    3. B002CNE

      Disconnect the 2 connectors to remove the cowl side junction block LH on the back side.

  4. REMOVE COWL SIDE JUNCTION BLOCK LH (for RHD)


    1. B002D80

      Disconnect the 7 connectors on the front side.

    2. B002DDS

      Remove the bolt and nut.

    3. B002CNE

      Disconnect the 2 connectors to remove the cowl side junction block LH on the back side.

  5. REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. B002EB7C01
      B002DP3 Press

      Press the claw of the cowl side junction block LH as shown in the illustration to release the lock.

    2. B002E7KC01
      *a Protective Tape
      B002DP3 Insert
      B002C8N Remove in this Direction

      With the cowl side junction block assembly LH lock released, insert a screwdriver with its tip wrapped in protective tape horizontally between the main body ECU (multiplex network body ECU) and cowl side junction block LH.

      Note

      Use a screwdriver with a diameter between 5.0 mm (0.197 in.) and 6.3 mm (0.248 in.) and a length of approximately 90 mm (3.54 in.).

    3. B002CGUC01
      *a Protective Tape
      B002CL1 Connector
      B002C8N Remove in this Direction

      Using a screwdriver with its tip wrapped in protective tape, carefully raise the main body ECU(multiplex network body ECU) to the position where the connector becomes disconnected.

      Note


      • Do not twist the screwdriver to raise the main body ECU (multiplex network body ECU).

      • Do not damage the connector

    4. B002EGWC01
      B002C8N Remove in this Direction (1)
      B002E01 Remove in this Direction (2)

      Remove the main body ECU (multiplex network body ECU) as shown in the illustration.

      Note

      Do not touch the main body ECU (multiplex network body ECU) connector.